avcodec/diracdec: Make data_unit_size unsigned

Fixes CID1271788

with this change the value is more explicitly checked, it was fully checked
before though

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
pull/135/merge
Michael Niedermayer 10 years ago
parent a9bf628bfd
commit 8f1afde11d
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